210899740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{1087}}^1$

素因数の和:1294

約数の個数: 48

約数和(自身を含む): 452390400

約数和(自身を除く): 241490660

約数列:

[1, 2, 4, 5, 10, 20, 89, 109, 178, 218, 356, 436, 445, 545, 890, 1087, 1090, 1780, 2174, 2180, 4348, 5435, 9701, 10870, 19402, 21740, 38804, 48505, 96743, 97010, 118483, 193486, 194020, 236966, 386972, 473932, 483715, 592415, 967430, 1184830, 1934860, 2369660, 10544987, 21089974, 42179948, 52724935, 105449870, 210899740]

約数ペア:

[(1, 210899740), (2, 105449870), (4, 52724935), (5, 42179948), (10, 21089974), (20, 10544987), (89, 2369660), (109, 1934860), (178, 1184830), (218, 967430), (356, 592415), (436, 483715), (445, 473932), (545, 386972), (890, 236966), (1087, 194020), (1090, 193486), (1780, 118483), (2174, 97010), (2180, 96743), (4348, 48505), (5435, 38804), (9701, 21740), (10870, 19402)]